[pci:next 20/29] drivers/pci/controller/dwc/pcie-rcar-gen4.c:307:30: error: use of undeclared identifier 'PCIE_PORT_LANE_SKEW'

[pci:next 20/29] drivers/pci/controller/dwc/pcie-rcar-gen4.c:307:30: error: use of undeclared identifier 'PCIE_PORT_LANE_SKEW'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next
head:   372b7a0d9c7c0cb724b259db9d39c785ad9dec74
commit: 9bab7146bd9ef2700f42d705d8e01d7d95362d0f [20/29] Merge branch 'pci/controller/dwc-rcar-gen4'
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20261004/202610042255.a8dle5HM-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 5f609f950d2e80addf5566623013db68394334db)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261004/202610042255.a8dle5HM-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610042255.a8dle5HM-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/pci/controller/dwc/pcie-rcar-gen4.c:307:30: error: use of undeclared identifier 'PCIE_PORT_LANE_SKEW'
     307 |         val = dw_pcie_readl_dbi(dw, PCIE_PORT_LANE_SKEW);
         |                                     ^~~~~~~~~~~~~~~~~~~
   drivers/pci/controller/dwc/pcie-rcar-gen4.c:311:25: error: use of undeclared identifier 'PCIE_PORT_LANE_SKEW'
     311 |         dw_pcie_writel_dbi(dw, PCIE_PORT_LANE_SKEW, val);
         |                                ^~~~~~~~~~~~~~~~~~~
   drivers/pci/controller/dwc/pcie-rcar-gen4.c:338:30: error: use of undeclared identifier 'PCIE_PORT_LANE_SKEW'
     338 |         val = dw_pcie_readl_dbi(dw, PCIE_PORT_LANE_SKEW);
         |                                     ^~~~~~~~~~~~~~~~~~~
   drivers/pci/controller/dwc/pcie-rcar-gen4.c:342:25: error: use of undeclared identifier 'PCIE_PORT_LANE_SKEW'
     342 |         dw_pcie_writel_dbi(dw, PCIE_PORT_LANE_SKEW, val);
         |                                ^~~~~~~~~~~~~~~~~~~
   4 errors generated.


vim +/PCIE_PORT_LANE_SKEW +307 drivers/pci/controller/dwc/pcie-rcar-gen4.c

0d0c551011df45 Yoshihiro Shimoda 2023-10-18  294  
eeeb72fab4a569 Marek Vasut       2026-09-21  295  static int rcar_gen4_v4h_v4m_pcie_init(struct rcar_gen4_pcie *rcar)
eeeb72fab4a569 Marek Vasut       2026-09-21  296  {
eeeb72fab4a569 Marek Vasut       2026-09-21  297  	struct dw_pcie *dw = &rcar->dw;
eeeb72fab4a569 Marek Vasut       2026-09-21  298  	u32 val;
eeeb72fab4a569 Marek Vasut       2026-09-21  299  	int ret;
eeeb72fab4a569 Marek Vasut       2026-09-21  300  
eeeb72fab4a569 Marek Vasut       2026-09-21  301  	/* R-Car Gen4 common initialization. */
eeeb72fab4a569 Marek Vasut       2026-09-21  302  	ret = rcar_gen4_pcie_common_init(rcar);
eeeb72fab4a569 Marek Vasut       2026-09-21  303  	if (ret)
eeeb72fab4a569 Marek Vasut       2026-09-21  304  		return ret;
eeeb72fab4a569 Marek Vasut       2026-09-21  305  
eeeb72fab4a569 Marek Vasut       2026-09-21  306  	/* R-Car V4H and V4M specific additional initialization. */
eeeb72fab4a569 Marek Vasut       2026-09-21 @307  	val = dw_pcie_readl_dbi(dw, PCIE_PORT_LANE_SKEW);
eeeb72fab4a569 Marek Vasut       2026-09-21  308  	val &= ~PORT_LANE_SKEW_INSERT_MASK;
eeeb72fab4a569 Marek Vasut       2026-09-21  309  	if (dw->num_lanes < 4)
eeeb72fab4a569 Marek Vasut       2026-09-21  310  		val |= BIT(6);
eeeb72fab4a569 Marek Vasut       2026-09-21  311  	dw_pcie_writel_dbi(dw, PCIE_PORT_LANE_SKEW, val);
eeeb72fab4a569 Marek Vasut       2026-09-21  312  
eeeb72fab4a569 Marek Vasut       2026-09-21  313  	val = readl(rcar->base + PCIEPWRMNGCTRL);
eeeb72fab4a569 Marek Vasut       2026-09-21  314  	val |= APP_CLK_REQ_N | APP_CLK_PM_EN;
eeeb72fab4a569 Marek Vasut       2026-09-21  315  	writel(val, rcar->base + PCIEPWRMNGCTRL);
eeeb72fab4a569 Marek Vasut       2026-09-21  316  
eeeb72fab4a569 Marek Vasut       2026-09-21  317  	return 0;
eeeb72fab4a569 Marek Vasut       2026-09-21  318  }
eeeb72fab4a569 Marek Vasut       2026-09-21  319  

:::::: The code at line 307 was first introduced by commit
:::::: eeeb72fab4a569c1cc547c9bf220c808dd37f83d PCI: rcar-gen4: Rework .additional_common_init() into .init()

:::::: TO: Marek Vasut <marek.vasut+renesas@mailbox.org>
:::::: CC: Bjorn Helgaas <bhelgaas@google.com>

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